题目一:python中String类型和unicode什么关系
整理答案:string是字节串,而unicode是一个统一的字符集,utf-8是它的一种存储实现形式,string可为utf-8编码,也可编码为GBK等各种编码格式
方法一:
# @param python面试题目
# @author 编程之家 jb51.cc|jb51.cc
List=['b','b','d','c','a','a']
print "the list is:",List
if List:
List.sort()
last = List[-1]
for i in range(len(List)-2,-1,-1):
if last==List[i]:
del List[i]
else:
last=List[i]
print "after deleting the repeated element the list is : ",List
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方法二:使用列表综合
# @param python面试题目
# @author 编程之家 jb51.cc|jb51.cc
l1 = ['b','a']
l2 = []
[l2.append(i) for i in l1 if not i in l2]
print l2
题目三:实现斐波那契(Fibonacci)数列
方法一:递归
def fibonacci2(n):
if n == 1 or n == 2:
return 1
else:
return fibonacci2(n-1) + fibonacci2(n-2)
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方法二:迭代
# @param python面试题目
# @author 编程之家 jb51.cc|jb51.cc
def fibonacci(n):
if n == 1 or n == 2:
return 1
nPre = 1
nLast = 1
nResult = 0
i = 2
while i < n:
nResult = nPre + nLast
nPre = nLast
nLast = nResult
i += 1
return nResult
print fibonacci(5)
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